The Effect of Aggressive Corrosion Mediums on the Microstructure and Properties of Mild Steel

Euroinvent ICIR 2018

Araoyinbo, A.O.^1 ; Mohd Salleh, M.A.A.^2 ; Rahmat, A.^2 ; Azmi, A.I.^1 ; Wan Abd Rahim, W.M.F.^1 ; Achitei, D.C.^2,3 ; Jin, T.S.^1

Faculty of Engineering Technology, Universiti Malaysia Perlis, UniCity Alam, Perlis, Malaysia^1

Center of Excellence Geopolymer and Green Materials (CEGeoGTech), School of Materials Engineering, Universiti Malaysia Perlis (UniMAP), Perlis, Malaysia^2

Gheorghe Asachi Technical University of Iasi, Faculty of Materials Science and Engineering, Blvd. D. Mangeron 41, Iasi

700050, Romania^3

关键词: Aggressive medium;    Application area;    Corrosion medium;    Hardness values;    Immersion tests;    Material industries;    Microstructure and properties;    Rockwell hardness tester;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/374/1/012044/pdf
DOI  :  10.1088/1757-899X/374/1/012044

来源: IOP

【 摘 要 】

Mild steel is known to be one of the major construction materials and have been extensively used in most chemical and material industries due to its interesting properties which can be easily altered to suit various application areas. In this research, mild steel is exposed to different aggressive mediums in order to observe the effect of these interactions on its surface morphology and properties. The mild steel used was cut into dimensions of 7 cm length and width of 3 cm. The aggressive mediums used are 100 mls of aqueous solution of hydrochloric acid, sodium hydroxide (40 g/L), and sodium chloride (35 g/L) at room temperature. The characterizations performed are the hardness test with the Rockwell hardness tester, the surface morphology by optical microscope, surface roughness and the weight loss from the immersion test. It was observed that the hardness value and the weight loss for the different cut samples of mild steel immersed in the different aggressive mediums reduces with prolong exposure and severe pitting form of corrosion was present on its surface.